Pitman connection for mowers.



HAROLD. FLATER, 0F Noaiaxiiivsr, SWEDEN.

PITIVIAN CONNECTION. FORv MOVV'ERS.I

To all whom tmc/.y concern: j f

Be it known that I, HAROLDt FLATER, a citizen of the UnitedStateswresiding at Norrkping, inthe county of Ostergtland and' State ofvSweden, have invented certain new and useful Improvements in PitmanConnections for'Mowers, of which the following is a. full, clear, andexact specification.

My invention relates to pitman connections for mowers.

The object of the invention is to provide means whereby the wear betweenthe pitman and its cooperating parts is automatically compensated forand the parts at all times are held in the proper adjustment.

In the accompanying drawings I have for the purpose of illustrationshown one embodiment of my invention, and in these drawings* Figure 1 isa side elevation of the pitman connection; and

Fig. 2 is a section taken on line 2-2 of Fig. 1, looking in thedirection of the arrows.

The stubbleward end 10 of the body portion of the pitman, which ispreferably made of wood, is provided with resilient straps 11, 12, andthese straps are provided at their ends with inwardly extendingconicalbearing heads 13, 14. rIhe resilient straps 11, 12 are connectedby means of a clamping bolt 15, which is threaded into the strap 11 andextends loosely through the strap 12. This bolt 15 is provided with ahead 16 which bears against the strap 12 when the bolt is in clampingposition. The strap 12 is also,

provided with a tension spring 17 formed of a flat resilient strap, andthis spring is clamped or riveted to the strap by means of rivets 18,and when under tension tends to move toward strap 12. The spring isbifurcated at its stubbleward end, forming a fork 19 which receives theclamping bolt 15, and this bolt is grooved as shown at 20 to receive theforked end of the spring.

In the form illustrated in the drawings, the conical heads 13, 14 ofthek resilient straps are received in similarly shaped recesses orsockets formed in the bearing box 21, which is carried by the crank pinof the mower. In adjusting my pitman to the bearing box, the clampingbolt 15 isturned, thereby drawing the resilient straps toward each otherand drawing the heads 13, 14 into the sockets of the bearing member 21.

Patented Oct. 2,A 1917.

Application filed-June 29, 1917; Sera-1110.171760.

Thisibo'lt isinitially adjusted so that' the straps and bearing headsare in proper adthe wear between the bearing heads 13, 14

' and the' bearing box will be sufficient to permit considerable lostmotion, and as a consequence the machine will not operate efficiently.However, by the use of the dat spring 17 above described, this wear istaken up and the tension of the spring will cause the pitman strap 11 tobe drawn toward the pitman strap 12, thereby taking up the wear andmaintaining the parts in proper adjustment.

While I have in this application specifically described one embodimentwhich my invention may assume in practice, it is, of course, to beunderstood that the invention is not limited to the specific form shownherein, but may be modified without departing from the spirit of theinvention.

What I claim as new and desire to secure by Letters Patent of the UnitedStates is:

1. In a pitman connection, a pitman having resilient straps, and meanslocated between said straps-for forcing the straps toward each other andthereby compensating for wear between the straps and the coperatingmember.

2. In a pitman connection, a pitman having resilient straps, a clampingbolt for forcing said straps toward each other, and means cooperatingwith said bolt and lixedly secured to one of said straps forautomatically adjusting said bolt and straps.

3. In a pitman connection, a 'pitman having resilient straps providedwith conical bearing surfaces on the ends thereof, means for clampingsaid straps, and additional means located between said straps andcooperating with said clamping means for forcing said straps toward eachother.

4. In a pitman connection, a pitman having resilient straps providedwith conical bearing surfaces on the ends thereof, a bearing box havingsockets for receiving said bearing surfaces, a clamping bolt looselycarried by one of said straps and threaded into the other of saidstraps, and means lixedly secured to one of said straps and cooperatingwith said clamping bolt for forcing said straps and bearing surfacesinto said sockets.

5. In a pitman connection, a pitman haw ioa ing resilientlstraps,-clampingv means for said straps, and a flat spring carriedvbyone of said straps and located between 'said straps.

for forcing said straps toward each other.

G. In a-pitman connection, a pitman having resilientV straps, a clampingbolt Vfor forcing said straps inwardly, said bolt hav ing an annulargroove therein, and a flaty re- 4 7. In a pitman connection, a pair ofstraps, one o f which is resilient, and means located between saidstrapsfor forcing said resilient strap toward the other strap.

i `8. In a pitman connection, a pair f of straps, one of which isresilient, and means fixcdlysecured to one of said straps for forcingsaid resilient strap toward the other strap.

9.111 a `pitman connection, a pair of straps, one of which is resilient,and means iiXedly secured to said resilientl strap for forcingv saidstraps toward each other. y

In testimonywhereof I affix my signature.

HAROLD FLATER.

I Copies of this patent may be obtained for ve cents each, by addressingthe Gommissoner of Patents, Washington, D. C.

